User blog comment:PokeFreak117/Braviary or Staraptor?/@comment-27248965-20171030152550/@comment-30134594-20171030191427

I also have to agree with Weather here.

Starly is more accessable and is more common on route 8. Also, you can actually find staravia on the same route so if you find that first, well, you are set.

Rufflet, while it has a moderately good moveset, is much rarer to find and is also found a bit later in the game.

It's up to you however. I hope this info helps you on your journey!